ClassID:

68813

B61L2207/02 - CPC Classification

Classification description:

Features of light signals using light-emitting diodes (LEDs)

Recent Application in this class:
#1
20250358915
2025-11-20

SYSTEM AND METHOD FOR RAILROAD SMART FLASHER LAMPS

#2
20250237370
2025-07-24

RAILROAD CROSSING GATE LAMP SYSTEM

#3
20250214634
2025-07-03

Derail Warning Light System

#4
20240237172
2024-07-11

SYSTEM AND METHOD FOR RAILROAD SMART FLASHER LAMPS

#5
20230391383
2023-12-07

Railroad Crossing Warning System

#6
20230269848
2023-08-24

System and method for railroad smart flasher lamps

#7
20230242164
2023-08-03

TRAIN WARNING SYSTEM FOR RAIL OPERATIONS

#8
20230150558
2023-05-18

Derail warning light system

#9
20220266878
2022-08-25

SYSTEM AND METHOD FOR SIGNALLING EVENTS THROUGH A VISIBILITY MARKER ASSOCIATED WITH A TRAIN

#10
20220063687
2022-03-03

Railroad color light signals including wind reduction elements

#11
20210190300
2021-06-24

Railroad crossing gate lamp system

#12
20200406945
2020-12-31

Local operation system

#13
20200276993
2020-09-03

Luminous device for rail ways signals and the like, and management method thereof

#14
20190329803
2019-10-31

Optical system for a LED signal and wayside LED signal

#15
20190329802
2019-10-31

LED shielding and monitoring system and wayside LED signals

#16
20190283788
2019-09-19

RAILWAY CROSSING AND SIGNALING SYSTEM AND METHOD

#17
20190185034
2019-06-20

Monitoring system, wayside LED signal, and method for monitoring a wayside LED signal

#18
20190152500
2019-05-23

Device for data and/or signal transmission

#19
20190077428
2019-03-14

Rail signal arrangement for a rail signaling system

#20
20180265105
2018-09-20

Light Signal

#21
20180235054
2018-08-16

Lamp driver card to control lighting of a lamp load or a LED on a wayside of a railway system

#22
20180202636
2018-07-19

Railroad crossing gate lamp system

#23
20180156398
2018-06-07

Barrier gate arm with recessed light housing

#24
20180009453
2018-01-11

Light signal

#25
20170291619
2017-10-12

Mechanized Signal Mast

#26
20170227203
2017-08-10

Device and method for monitoring a signal emitter comprising a light-emitting diode in a light-signal system

#27
20170217456
2017-08-03

Train derailer placement warning device

#28
20170072971
2017-03-16

Locomotive headlight assembly

#29
20160381758
2016-12-29

System and method for controlling a wayside device

#30
20160348877
2016-12-01

Method and system for LED based incandescent replacement module for railway signal

#31
20160347336
2016-12-01

Monitoring system, wayside LED signaling device, and method for monitoring a wayside LED signaling device

#32
20160108590
2016-04-21

Level crossing light panel

#33
20150316216
2015-11-05

LED traffic signal light module

#34
20150309124
2015-10-29

Method and apparatus for revealing errors in the case of a light signal

#35
20150298713
2015-10-22

Circuit arrangement for revealing light signal errors

#36
20150159849
2015-06-11

LED retrofit module for railway signaling

#37
20150137679
2015-05-21

LED signal lamp

#38
20150124473
2015-05-07

Locomotive LED/optics headlight assembly

#39
20140313740
2014-10-23

LED illuminating device

#40
20140268639
2014-09-18

Multi-wavelength-emitting lens to reduce blending of light over long distances

#41
20130113377
2013-05-09

Power supply unit for signal luminaires

#42
20130099933
2013-04-25

LED light signal

#43
20130051045
2013-02-28

Locomotive LED/optics headlight assembly

#44
20130015298
2013-01-17

System, method and device for conveying information from a wayside device

#45
20120162997
2012-06-28

LIGHT SIGNAL

#46
20120153314
2012-06-21

Light signal

#47
20110261558
2011-10-27

System for use in illumination of railway feature

#48
20110125405
2011-05-26

AUTONOMOUS VEHICLE RAILROAD CROSSING WARNING SYSTEM

#49
20100231414
2010-09-16

Signal alignment monitoring system and method of assembling the same

#50
20090167186
2009-07-02

LEDs tricolor power signal

#51
20080265262
2008-10-30

Methods and systems for testing a functional status of a light unit

#52
20080218993
2008-09-11

LED signal lamp

#53
20080218097
2008-09-11

Emulation circuit

#54
20080121761
2008-05-29

Control of the luminous intensity of power LEDs by using the photoelectric effect characteristics of said power LEDs

#55
20070211473
2007-09-13

Light emitting diode module with improved light distribution uniformity

#56
20060259202
2006-11-16

SIGNALING SYSTEM

#57
20060256552
2006-11-16

Circuit for driving and monitoring a light signal

#58
20060066447
2006-03-30

System and method for monitoring status of a visual signal device

#59
20050206529
2005-09-22

Intelligent light degradation sensing LED traffic signal

#60
20050151665
2005-07-14

Method and apparatus for tri-color rail signal system with control

#61
20050122719
2005-06-09

Light signal

#62
20050068771
2005-03-31

LED signal with side emitting status indicators

#63
20050062481
2005-03-24

Wayside LED signal for railroad and transit applications

#64
20050029961
2005-02-10

Circuit assembly for operating a luminous signal

#65
18124673
2024-02-06

Use of artificial intelligence to detect defects in trains and method to use